I/O Address Syntax

OID Address

Both Application Server and InTouch HMI can read and write to items in devices using either a reference name or the item's OID. Specify the address of the OID (used for GET and SET operations) with the following syntax:

Datatype:OID

• OID is the object identifier of the variable (when performing GET and SET operations). This parameter is required.

• The Datatype parameter is required for SET (write) actions to the OIDs, but is optional for GET (read) actions.

Examples of valid addresses when performing GET and SET operations:

• OCTETSTRING:.1.3.6.1.2.1.1.1.0

  In this example, you can use OCTETSTRING:.1.3.6.1.2.1.1.1.0 or .1.3.6.1.2.1.1.1.0 when performing GET operations.

  In this example, to perform a SET the OID should support Write actions and the item reference must be configured as INT:.1.3.6.1.2.1.1.1.0.

• OCTETSTRING:.1.3.6.1.2.1.1.1.2

• COUNTER32:.1.3.6.1.2.1.1.1.7

• TIMETICKS:.1.3.6.1.2.1.1.1.8